I have a DCS-942L. Everything was working fine on my setup until I upgraded the firmware the other day. In the mydlink.com website when I logged in that day, it stated a firmware upgraded was needed. So I clicked on upgrade, let it run its thing and then tried to view the playback and now the thumbnails are just black and when I click on one, it looks like it is loading but then shows the quicktime icon with a question mark over it. I upgraded my Quicktime component and that didn't fix it either. So I went into advanced settings, downloaded the new firmware upgrade from there by saving the zip file and uploading it via the advanced settings website, and still nothing. I have another camera, same setup, that I have not upgraded firmware on yet and that playback is working fine. Any suggestions?